As of 14:36 PDT

Weather in Duwamish, WA

55°

Duwamish, Tuesday, 27 October, 14:36

Overcast. Feels like 54°. High 55°, low 49°.

Pressure29.94 inHg

Wind13.8 mph SW

Humidity78%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Monthly outlook for Duwamish, WA: average high 54.2°, average low 45.8°. That is 1.1° above the climate normal for October. Precipitation is expected on 9 days (about 4.2 inches), against a normal of 9 days and 3.7 inches. The warmest day looks like 11 November (61.8°), the coolest 1 November (39.6°).

54.2°/45.8°

Average high / low

+1.1°

Above normal

9 / 9

Wet days / normal

4.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	54.1°	53°	+0.6°
6 November – 15 November	54.2°	50.5°	+2°
16 November – 25 November	at normal	46.9°	—

October records over 66 years

84.9°1 October 1987All-time high

24.1°28 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Riverton (1 mi).

Wed, 2855° / 48°

0.04

55 °

Duwamish, Wednesday, 28 October

Light rain. High 55°, low 48°.

Pressure29.94 inHg

Wind12.8 mph SW

Humidity66%

Visibility6.2 mi

Dew point41°

Thu, 2953° / 43°

0.32

53 °

Duwamish, Thursday, 29 October

Rain. High 53°, low 43°.

Pressure30.03 inHg

Wind4.2 mph E

Humidity88%

Visibility5.1 mi

Dew point44°

Fri, 3050° / 43°

0.27

50 °

Duwamish, Friday, 30 October

Rain. High 50°, low 43°.

Pressure29.94 inHg

Wind6.4 mph SE

Humidity93%

Visibility4.7 mi

Dew point42°

Sat, 3151° / 40°

51 °

Duwamish, Saturday, 31 October

Overcast. High 51°, low 40°.

Pressure30.03 inHg

Wind2.3 mph N

Humidity85%

Visibility6.2 mi

Dew point43°

Sun, 0152° / 40°

52 °

Duwamish, Sunday, 1 November

Overcast. High 52°, low 40°.

Pressure30.33 inHg

Wind6 mph SE

Humidity89%

Visibility—

Dew point40°

Mon, 0254° / 42°

54 °

Duwamish, Monday, 2 November

Overcast. High 54°, low 42°.

Pressure30.24 inHg

Wind6.6 mph N

Humidity59%

Visibility—

Dew point33°

Tue, 0356° / 44°

56 °

Duwamish, Tuesday, 3 November

Overcast. High 56°, low 44°.

Pressure30.06 inHg

Wind3.3 mph N

Humidity50%

Visibility—

Dew point31°

Wed, 0457° / 44°

57 °

Duwamish, Wednesday, 4 November

Overcast. High 57°, low 44°.

Pressure30.03 inHg

Wind4.4 mph S

Humidity52%

Visibility—

Dew point32°

Thu, 0558° / 45°

58 °

Duwamish, Thursday, 5 November

Overcast. High 58°, low 45°.

Pressure30.03 inHg

Wind2.8 mph SE

Humidity52%

Visibility—

Dew point34°

Fri, 0653° / 48°

1.48

53 °

Duwamish, Friday, 6 November

Rain. High 53°, low 48°.

Pressure29.85 inHg

Wind6.4 mph S

Humidity89%

Visibility—

Dew point46°

Sat, 0758° / 51°

0.62

58 °

Duwamish, Saturday, 7 November

Rain. High 58°, low 51°.

Pressure29.85 inHg

Wind6.6 mph SW

Humidity86%

Visibility—

Dew point50°

Sun, 0850° / 48°

0.28

50 °

Duwamish, Sunday, 8 November

Light rain. High 50°, low 48°.

Pressure29.77 inHg

Wind4.9 mph S

Humidity86%

Visibility—

Dew point46°

Mon, 0950° / 47°

0.24

50 °

Duwamish, Monday, 9 November

Rain. High 50°, low 47°.

Pressure30.12 inHg

Wind8.9 mph S

Humidity79%

Visibility—

Dew point43°

Tue, 1052° / 48°

0.68

52 °

Duwamish, Tuesday, 10 November

Rain. High 52°, low 48°.

Pressure30.24 inHg

Wind2.8 mph S

Humidity96%

Visibility—

Dew point48°

Wed, 1162° / 53°

0.04

62 °

Duwamish, Wednesday, 11 November

Light rain. High 62°, low 53°.

Pressure30.27 inHg

Wind4.2 mph N

Humidity88%

Visibility—

Dew point53°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 1250° / 41°

0.26

50 °

Duwamish, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°

Average low41°

Average precipitation0.26 in

Chance of precipitation65%

Record high58° (1990)

Record low25° (1985)

Fri, 1350° / 40°

0.29

50 °

Duwamish, Friday, 13 November

Climate normal for this date — 60-year average.

Average high50°

Average low40°

Average precipitation0.29 in

Chance of precipitation60%

Record high62° (1967)

Record low26° (2014)

Sat, 1450° / 40°

0.29

50 °

Duwamish, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high50°

Average low40°

Average precipitation0.29 in

Chance of precipitation53%

Record high62° (1969)

Record low26° (2014)

Sun, 1550° / 40°

0.24

50 °

Duwamish, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°

Average low40°

Average precipitation0.24 in

Chance of precipitation67%

Record high59° (2021)

Record low26° (2014)

Mon, 1648° / 40°

0.23

48 °

Duwamish, Monday, 16 November

Climate normal for this date — 60-year average.

Average high48°

Average low40°

Average precipitation0.23 in

Chance of precipitation72%

Record high60° (1965)

Record low26° (2014)

Tue, 1748° / 39°

0.26

48 °

Duwamish, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°

Average low39°

Average precipitation0.26 in

Chance of precipitation60%

Record high60° (1995)

Record low27° (1961)

Wed, 1847° / 38°

0.18

47 °

Duwamish, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°

Average low38°

Average precipitation0.18 in

Chance of precipitation57%

Record high57° (1965)

Record low27° (1975)

Thu, 1947° / 39°

0.31

47 °

Duwamish, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°

Average low39°

Average precipitation0.31 in

Chance of precipitation68%

Record high58° (1987)

Record low27° (1977)

Fri, 2048° / 38°

0.23

48 °

Duwamish, Friday, 20 November

Climate normal for this date — 60-year average.

Average high48°

Average low38°

Average precipitation0.23 in

Chance of precipitation58%

Record high60° (2002)

Record low22° (1985)

Sat, 2146° / 37°

0.24

46 °

Duwamish, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.24 in

Chance of precipitation50%

Record high58° (2002)

Record low19° (1977)

Sun, 2246° / 36°

0.24

46 °

Duwamish, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high46°

Average low36°

Average precipitation0.24 in

Chance of precipitation65%

Record high64° (2017)

Record low10° (1985)

Mon, 2346° / 37°

0.33

46 °

Duwamish, Monday, 23 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.33 in

Chance of precipitation70%

Record high61° (2017)

Record low1° (1985)

Tue, 2446° / 37°

0.32

46 °

Duwamish, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.32 in

Chance of precipitation63%

Record high57° (1995)

Record low5° (1985)

Wed, 2546° / 37°

0.35

46 °

Duwamish, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high46°

Average low37°

Average precipitation0.35 in

Chance of precipitation63%

Record high55° (1977)

Record low11° (1985)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Duwamish, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Duwamish, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.